Star finches Neochmia ruficauda have a visual preference for white dot patterns: a possible case of trypophilia
Many animals have polka dot patterns on their body surface, some of which are known to have signalling functions; however, their evolutionary origins remain unclear. Dot patterns can trigger a fear response (trypophobia) in humans and are known to function as aposematic signals in non-human animals, suggesting that dots may deserve attention for biological reasons. Interestingly in many birds, plumage dot patterns serve for social/sexual signalling. To understand their evolution, we have focused on the sensory bias hypothesis, which…..
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Mizuno, A., Soma, M. Star finches Neochmia ruficauda have a visual preference for white dot patterns: a possible case of trypophilia. Anim Cogn (2022).